Suppose a person is very motivated and he says that today I will fly the plane then it does not mean that he can fly because he is very motivated, for that you need attitude, skill, knowledge etc. What it means is that you cannot become successful in your life with just motivation, for that you need skill, knowledge, education etc. The Path to True Success is possible only when you develop your skills while having time so that you can move ahead and become successful in life.
You have to learn from your mistakes, you have to accept your mistakes. You have to change your mentality, accept your mistakes and learn from them. Because Krishna says that the person who accepts his mistakes, no one can stop him from becoming great. And always remember one thing Weakness + Wickedness = Game Over.